EP0006776B1 - Procédé pour le traitement de matières polluantes formées d'hydrocarbures rejetés en mer, de boues résiduaires, ou d'eaux usées - Google Patents

Procédé pour le traitement de matières polluantes formées d'hydrocarbures rejetés en mer, de boues résiduaires, ou d'eaux usées Download PDF

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Publication number
EP0006776B1
EP0006776B1 EP79400337A EP79400337A EP0006776B1 EP 0006776 B1 EP0006776 B1 EP 0006776B1 EP 79400337 A EP79400337 A EP 79400337A EP 79400337 A EP79400337 A EP 79400337A EP 0006776 B1 EP0006776 B1 EP 0006776B1
Authority
EP
European Patent Office
Prior art keywords
hydrocarbons
binder
water
aforesaid
treatment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP79400337A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0006776A1 (fr
Inventor
Etienne Tillie
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR7816009A external-priority patent/FR2427430A1/fr
Priority claimed from FR7829532A external-priority patent/FR2465688A2/fr
Priority claimed from FR7912702A external-priority patent/FR2478699A2/fr
Application filed by Individual filed Critical Individual
Priority to AT79400337T priority Critical patent/ATE7135T1/de
Publication of EP0006776A1 publication Critical patent/EP0006776A1/fr
Application granted granted Critical
Publication of EP0006776B1 publication Critical patent/EP0006776B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H12/00—Cleaning beaches or sandboxes
    • E01H12/006—Oil removal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09C—RECLAMATION OF CONTAMINATED SOIL
    • B09C1/00—Reclamation of contaminated soil
    • B09C1/08—Reclamation of contaminated soil chemically
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • C02F1/681—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water by addition of solid materials for removing an oily layer on water
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/32—Materials not provided for elsewhere for absorbing liquids to remove pollution, e.g. oil, gasoline, fat
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/001—Treatment of dispersed oil or similar pollution on roads, for instance devices for applying treating agents

Definitions

  • the invention generally relates to a process for the treatment of pollutants, and more particularly relates to the treatment of hydrocarbons discharged at sea accidentally or deliberately, by oil tankers, these hydrocarbons being able to be treated both at the level of the layers which they form on the surface of the sea and at beach level when these hydrocarbons have reached the coasts, as well as the treatment of waste water and residual sludge whatever its origin and consistency, and in particular that coming from stations sewage effluent treatment.
  • the mechanical process when you have motorized earthmoving machines commonly known as bulldozers, scrapers, self-loaders, consists of gathering in a heap the sand mixed with hydrocarbons and carrying out the excavation by trucks equipped with tipping bodies.
  • the embankment takes place on land either in a heap, or in natural holes or excavations.
  • the manual process consists in manually digging from place to place shallow holes in the sand and to gather there with a shovel the layer of hydrocarbons while extracting the crude oil as and when either in a bucket to fill tanks , or by means of special pumps of the “slurry pump” type capable of sucking and discharging viscous or “loaded” liquids. Transport is then carried out by trucks or tank wagons.
  • the object of the invention is to solve all the problems posed by the previous methods which prove to be unsuitable and rudimentary, to avoid the drawbacks thereof and to this end proposes a particularly, new and completely integrated technique by calling upon the use and the use of various materials capable of sequestering these hydrocarbons with promptness.
  • the process allows the transformation of the hydrocarbons into a solid plate which facilitates the clearing by leaving a discovery of clean ground, provides for the suitable and safe storage of the materials recovered, makes possible their subsequent energy use in a combustible granular form.
  • the process according to the invention allows the complete and accelerated cleaning of the beaches between two tides or else, by temporary abandonment of the coating thus formed, prevents the infiltration of hydrocarbons likely to be deposited again during successive ebb and flow.
  • the method according to the invention also aims to solve the problems posed by the previous methods, to avoid the drawbacks thereof, through the use of specific products making it possible to vigorously sequester the hydrocarbons without thereby failing to meet the requirements of the safety at sea and the safeguarding of nature.
  • the process according to the invention also aims to solve all the problems posed by the previous processes for treating residual sludge, processes which are more or less rudimentary, incomplete or unsanitary or even considered too expensive, to avoid the disadvantages thereof.
  • proposeing for this purpose a particular technique, simple and appropriate to the requirements of public health, reliable and adaptable to all types of used water or residual sludge whatever their origin and their consistency, produced or not in a way aerobic or anaerobic, occupying only a limited area and which can still, if necessary, be integrated in certain cases inside existing installations without requiring major transformations.
  • the process according to the invention calls for the use and implementation of products capable of first promoting, accelerating and then maintaining, the process of settling and reducing the volume of the residual sludge to a greater or lesser extent. water content by separation and rapid concentration of suspended particles, thus allowing the extraction and easy removal of most of the excess water.
  • the method according to the invention makes it possible to effectively solve in particular the problem of pollution of the beaches by oil, the problem of recovering oil at sea before they have reached the coast. , and the problem posed by residual sludge, thanks to the use of specific chemicals which meet all the requirements which may be imposed for such treatments.
  • the subject of the present invention is a method for the treatment of pollutants formed from hydrocarbons present in the form of sheets on the surface of bodies of water or present on beaches or any other ground; waste sludge or wastewater, consisting in treating said polluting materials with calcium sulphate used as hydraulic binder, to obtain a resultant product which is easy to handle and recoverable in order to be able to thus eliminate all traces of pollution, characterized in that treats said pollutants with calcium sulphate semi-hydrate in ALPHA form.
  • the abovementioned hydraulic binder is used, added with at least one other material such as an adjuvant, peat, wood waste or coal dust.
  • an essential characteristic of the process for treating hydrocarbons deposited on the beaches consists in using, as hydraulic binder, calcium sulphate semi-hydrate in ALPHA form, adjuvanted or not, mixed or not with other hydraulic binders and / or organic materials playing the role of water and / or petroleum retainers for example.
  • the mixture thus formed generally takes on a lighter coloring, which in particular makes it possible to very easily appreciate the progress of the work from a distance. It increases in volume, thickens, hardens in a few minutes to form a plaque which quickly exudes excess seawater.
  • the recovery of this plate, the thickness of which depends on the quantities of ingredients brewed, becomes very easy and, very importantly, leaves a discovery of the terrain proper to the initial appearance, free of impurities and traces of hydrocarbons. The removal can then be immediately undertaken and the storage can take place with a view to effecting an additional drying in the case of slight incorporation of seawater. In a second case and for the aforementioned reasons, it can it may be advantageous or necessary to leave the crust thus formed on site for a certain time.
  • the granules thus burned are found in the form of small white, spongy stones proving, by their total coloring and the disappearance of their bad smell that the combustion of the sequestered hydrocarbons has indeed been complete, including the tars. They come in the more or less friable aspect of pozzolan and, in some cases, essentially consist of SO 4 Ca intended to be ground. They can be used in powder form as an amendment to clayey soils, ending in this appearance the cycle of complete elimination of pollution and total recovery of the above-mentioned mixtures.
  • the process according to the invention also makes it possible to treat the oil slicks on the surface of the sea, that is to say before they come to pollute the beaches.
  • the process calls for the use and implementation of different products of variable density which can be greater than 1 in certain cases, capable of sequestering the particles of hydrocarbons, but whose capacity to float on the surface water can remain standing, not only regarding 'products combined results, but also for produtits which, for particular reasons, could not play the role of absorbing or sequestering; ability to float in a solid form allowing trawling and total recovery of the various pieces thus formed, avoiding the spread of pollution both on the surface and in the aquatic mass itself, as well as on the seabed.
  • the basic product used is calcium sulphate hemi-hydrate in the ALPHA form, adjuvanted and / or added with other high density pulverulent products such as calcium sulphate dihydrates in the form of ALPHA and / or BETA.
  • this product must be compatible with the conditions of implementation in heavy weather and strong wind so that it is not carried away by the elements and that it can quickly set in this specific case in the presence of hydrocarbons. .
  • the pulverulent constituents although having an apparent and variable density, sometimes less than 1, sometimes more than 1 and even more, depending on the conditions of use, are added so that the recommended product, both very oleophilic and partially hydrophobic can float in some cases.
  • the use of neutral coating powders with high covering power is cited by way of example as an adjuvant.
  • the parts combined with the hydrocarbons harden and can float on the surface of the sea taking on a lighter coloring as well as that which could not have succeeded in sequestering the oil and which, themselves, are distinguished by their whitish appearance. The whole can then be collected by trawling for example.
  • the combined products have either undergone pre-expansion or undergo expansion at the time of the reaction and may float on the surface of water for this reason. In other cases, on the contrary, they should be densified so that they remain between two waters or that they sink in order to seal an opening produced in a ship's hull or in a crack in the seabed.
  • the process makes it possible to use the basic product in a stabilized pasty form, as injection under high pressure, taking care to reactivate it at will either with the aid of a liquid, a gas or any other material.
  • projection and spreading devices are used either by sea or by air, making it possible to bring the treatment and sequestration products into contact with the polluting mass whatever the state of the sea and atmospheric conditions.
  • the process allows good constant agglomeration of the various constituents to be obtained.
  • the ashes being recyclable or usable as a soil amendment for heavy and clayey soils as well as various fertilizer substrate.
  • the process according to the invention calls for the use and implementation of various products capable of first promoting, accelerating and then maintaining the process of settling and reducing the volume of the residual sludge to a greater or lesser extent. lower water content by separation and rapid concentration of suspended particles, thus allowing the extraction and easy elimination of most of the excess water.
  • the product used to treat these waste waters is calcium sulphate semi-hydrate in the ALPHA form of ordinary quality, added or not, added or not, mixed or not with other hydraulic binders of mineral or organic origin.
  • the product used to treat these waste waters is calcium sulphate semi-hydrate in the ALPHA form of ordinary quality, added or not, added or not, mixed or not with other hydraulic binders of mineral or organic origin.
  • to chemicals themselves of mineral or organic origin having the effect of purifiers, sterilizers, disinfectants, flocculants, agglomerants, bactericides, fungicides or on the contrary vectors of bacteria or fungi, etc. ..., possibly subject or not to electrical or magnetic impulses.
  • the subsequent hydration of the grains has the consequence of increasing their density, of releasing a pH slightly different from the initial pH which “breaks” the phenomenon of suspension. Very quickly, a few millimeters of released water appear on the surface of the basin.
  • the colloidal agglomeration then begins, maintains, accelerates during the whole phase of maneuverability also called “range of use” which in fact corresponds to a pre-setting of the binder or the beginning of latent resincrystallization.
  • the crystals grow larger (knowing that their shapes and textures can be predetermined at the time of the manufacture of calcium sulphate hemihydrates in the form ALPHA) appearing at will in the appearance of more or less long needles or parallelepipeds more or less large rectangles.
  • This feature is of the greatest interest for the optimized determination of a calcium sulphate hemihydrate in the particular ALPHA form required by the best treatment of waste water or residual sludge in this or that case. This is why we cannot speak of a hemi-hydrate of calcium sulphate in the form ALPHA in the singular but of hemi-hydrates of calcium sulphate in the form ALPHA in the plural.
  • the crystals then begin to descend towards the bottom of the basin, creating a vertical autokinetic filtration effect directed from top to bottom, which explains the relative slowness of sedimentation due to the "braking" of the particles in suspension.
  • the impurities are embedded in the crystal lattice and are drawn down faster and faster as the crystals grow larger and agglomerate while increasing in density under the action of chemical combinations.
  • the separation stabilizes in a short period of time, about 15 minutes and clearly reveals two well-defined parts: one characterized by its limpid appearance consisting of clear water from the decomposition of the elements in suspension compared to the other represented by the combined sequestration binder and containing all the solid particles of the initial liquid.
  • the hardening of the plate makes it possible to recover the two decomposition products in an easy way: free water to be rejected or recycled; the plate to be reduced and constitute, as the case may be, an amendment and a fertilizer, or else a substrate of additional chemical and organic fertilizers, or transformed into building materials or more simply incinerated.
  • the process makes it possible to obtain sufficiently concentrated sludge and of optimum consistency to be able to be handled, and consequently ensures a complete treatment and a final elimination of the residual sludge originating in particular from wastewater treatment plants.
  • the products used by the process according to the invention are characterized by a non-destructive action and perfect harmlessness with respect to the biomass and act as preservatives for the flora and fauna.
  • certain products released by some of their components are favorable to terrestrial and aquatic life and can serve as food for phytoplankton.
  • binders used in accordance with the invention are preferably in powder form before their use.
  • the process according to the invention advantageously mixes the base binder used with fine materials such as additives and / or coarser materials such as peat so to significantly increase the power of sequestration and retention.
  • Other materials can also be added so as to give the product resulting from the treatment of hydrocarbons with the binder, a cavernous structure which facilitates the return of gases and combustible materials when this product is burned.
  • peat, wood waste, coal dust, etc. are advantageously used as additional materials.
  • the hydraulic binder used is characterized by its non-destructive action and its perfect harmlessness with respect to the biomass and acting as a means of preserving the flora and fauna.
  • the products released by certain components of the binders used are favorable to terrestrial and aquatic life and can serve as food for phytoplankton.
  • the process consists either in stir in the liquid present, or mix “continuously” when filling a tank, for example, a hydraulic binder as defined above, used pure or combined with other materials, to let decompose and decant the suspension to collect the free water from the sequestered particles assembled at the bottom and solidified.
  • a hydraulic binder as defined above, used pure or combined with other materials, to let decompose and decant the suspension to collect the free water from the sequestered particles assembled at the bottom and solidified.
  • the binder used can also be mixed with other materials such as peat to give the sludge when treated a cavernous structure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Medicinal Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Public Health (AREA)
  • Materials Engineering (AREA)
  • Soil Sciences (AREA)
  • Treatment Of Sludge (AREA)
  • Removal Of Floating Material (AREA)
  • Processing Of Solid Wastes (AREA)
  • Water Treatment By Sorption (AREA)
EP79400337A 1978-05-30 1979-05-29 Procédé pour le traitement de matières polluantes formées d'hydrocarbures rejetés en mer, de boues résiduaires, ou d'eaux usées Expired EP0006776B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79400337T ATE7135T1 (de) 1978-05-30 1979-05-29 Verfahren zur behandlung von verschmutzenden materialien, die aus oelschlichen, schlammen oder abflusswassern bestehen.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
FR7816009 1978-05-30
FR7816009A FR2427430A1 (fr) 1978-05-30 1978-05-30 Procede, produits et dispositifs de lutte contre la pollution des plages par les hydrocarbures
FR7829532A FR2465688A2 (fr) 1978-10-17 1978-10-17 Procede, produits et dispositifs de traitement des matieres polluantes
FR7829532 1978-10-17
FR7912702 1979-05-18
FR7912702A FR2478699A2 (fr) 1979-05-18 1979-05-18 Procede, produits et dispositifs de traitement et de recuperation des matieres polluantes en milieu aquatique

Publications (2)

Publication Number Publication Date
EP0006776A1 EP0006776A1 (fr) 1980-01-09
EP0006776B1 true EP0006776B1 (fr) 1984-04-18

Family

ID=27250835

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79400337A Expired EP0006776B1 (fr) 1978-05-30 1979-05-29 Procédé pour le traitement de matières polluantes formées d'hydrocarbures rejetés en mer, de boues résiduaires, ou d'eaux usées

Country Status (9)

Country Link
US (1) US4251362A (xx)
EP (1) EP0006776B1 (xx)
BR (1) BR7903365A (xx)
CA (1) CA1134078A (xx)
DE (1) DE2966908D1 (xx)
ES (1) ES481095A1 (xx)
IL (1) IL57432A (xx)
MA (1) MA18456A1 (xx)
NO (1) NO153565C (xx)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2557127B1 (fr) * 1983-12-27 1987-06-19 Lafarge Coppee Materiau absorbant ayant des proprietes oleophiles et hydrofuges et son application pour l'absorption des huiles polluant les eaux
FR2651501B1 (fr) * 1989-08-14 1994-05-27 Gerard Max Procede pour neutraliser une pollution notamment par des hydrocarbures ou une flore parasite a partir de gypse deshydratee.
DE4406714A1 (de) * 1994-02-25 1995-08-31 Bernhard Dipl Ing Zinke Verfahren zur Absorption von organischen umweltbelasteten Schadstoffen
US6322489B1 (en) * 1999-01-19 2001-11-27 M-I Llc Drill cuttings solidification for wetlands restoration
GB201010810D0 (en) * 2010-06-25 2010-08-11 Ntnu Technology Transfer As Oil removal
US20130062854A1 (en) * 2011-09-14 2013-03-14 Caterpillar Inc. Torsion suspension system

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR846310A (fr) * 1938-05-14 1939-09-14 Rateau Sa Procédé, produit et matériel pour la destruction et l'extinction des nappes flottantes d'hydrocarbures
FR1525204A (fr) * 1967-04-03 1968-05-17 Omya Sa Procédé d'élimination d'hydrocarbures liquides répandus sur l'eau
SE324740B (xx) * 1967-06-21 1970-06-08 Ytong Ab
CH495472A (fr) * 1967-12-21 1970-08-31 Schaeffer Jean Rene Procédé de récupération d'huiles minérales, notamment de pétrole à la surface de l'eau
DE1804419C3 (de) * 1968-10-22 1974-04-11 Dyckerhoff Zementwerke Ag, 6200 Wiesbaden Verwendung von hydraulischen Bindemitteln zum Beseitigen von auf Gewässern schwimmenden Ölen
US3580715A (en) * 1969-04-16 1971-05-25 Olin Corp Coated fertilizer
US3617539A (en) * 1969-05-15 1971-11-02 Standard Oil Co Process for removing contaminants from waste-water
DE1944679A1 (de) * 1969-09-03 1971-03-04 Collo Rheincollodium Koeln Gmb Verfahren und Einrichtungen zur Beseitigung von OElverschmutzungen od.dgl.
US3565796A (en) * 1970-02-11 1971-02-23 Biospherics Inc Method for increasing oxygen availability in sewage treatment
US3720609A (en) * 1970-04-17 1973-03-13 G & W Corson Inc Process for treating aqueous chemical waste sludges and composition produced thereby
US3725029A (en) * 1971-09-27 1973-04-03 Ga Pacific Corp Preparation of ammonium sulfate fertilizer constituent
IT984337B (it) * 1972-01-13 1974-11-20 Mc Cunn Herschell J Procedimento e composizione per eliminare oli grassi cere e simi li materiali da sistemi d acqua
US3781201A (en) * 1972-01-24 1973-12-25 C Carmichael Method for separating oil from a mixture of oil and waste water from an offshore rig
FR2172795B1 (xx) * 1972-02-22 1974-08-02 Fusey Pierre
US3820970A (en) * 1972-12-27 1974-06-28 Gypsum Co Less dusty granular gypsum product and process
US4153555A (en) * 1976-12-22 1979-05-08 Acker Jan R Cryogenic beach cleaner

Also Published As

Publication number Publication date
DE2966908D1 (en) 1984-05-24
EP0006776A1 (fr) 1980-01-09
IL57432A (en) 1983-07-31
ES481095A1 (es) 1980-08-16
CA1134078A (en) 1982-10-19
NO153565B (no) 1986-01-06
MA18456A1 (fr) 1979-12-31
IL57432A0 (en) 1979-09-30
US4251362A (en) 1981-02-17
NO153565C (no) 1986-04-16
NO791760L (no) 1979-12-03
BR7903365A (pt) 1979-12-11

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